//
// Written by Curtis Olson, started November 2001.
//
-// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <cstring>
+
#include <simgear/debug/logstream.hxx>
#include <simgear/io/lowlevel.hxx> // endian tests
+#include <simgear/io/sg_netBuffer.hxx>
#include <Main/fg_props.hxx>
+#include <Network/native_ctrls.hxx>
+#include <Network/native_fdm.hxx>
#include "ExternalNet.hxx"
-// FreeBSD works better with this included last ... (?)
-#if defined(WIN32) && !defined(__CYGWIN__)
-# include <windows.h>
-#else
-# include <netinet/in.h> // htonl() ntohl()
-#endif
-
-
-// The function htond is defined this way due to the way some
-// processors and OSes treat floating point values. Some will raise
-// an exception whenever a "bad" floating point value is loaded into a
-// floating point register. Solaris is notorious for this, but then
-// so is LynxOS on the PowerPC. By translating the data in place,
-// there is no need to load a FP register with the "corruped" floating
-// point value. By doing the BIG_ENDIAN test, I can optimize the
-// routine for big-endian processors so it can be as efficient as
-// possible
-static void htond (double &x)
+class HTTPClient : public simgear::NetBufferChannel
{
- if ( sgIsLittleEndian() ) {
- int *Double_Overlay;
- int Holding_Buffer;
-
- Double_Overlay = (int *) &x;
- Holding_Buffer = Double_Overlay [0];
-
- Double_Overlay [0] = htonl (Double_Overlay [1]);
- Double_Overlay [1] = htonl (Holding_Buffer);
- } else {
- return;
- }
-}
+ bool done;
+ SGTimeStamp start;
+ simgear::NetChannelPoller poller;
+public:
-static void global2net( FGNetCtrls *net ) {
- int i;
-
- // fill in values
- SGPropertyNode * node = fgGetNode("/controls", true);
- net->version = FG_NET_CTRLS_VERSION;
- net->aileron = node->getDoubleValue( "aileron" );
- net->elevator = node->getDoubleValue( "elevator" );
- net->elevator_trim = node->getDoubleValue( "elevator-trim" );
- net->rudder = node->getDoubleValue( "rudder" );
- net->flaps = node->getDoubleValue( "flaps" );
- net->flaps_power
- = node->getDoubleValue( "/systems/electrical/outputs/flaps",
- 1.0 ) >= 1.0;
- net->num_engines = FGNetCtrls::FG_MAX_ENGINES;
- for ( i = 0; i < FGNetCtrls::FG_MAX_ENGINES; ++i ) {
- net->throttle[i] = node->getDoubleValue( "throttle", 0.0 );
- net->mixture[i] = node->getDoubleValue( "mixture", 0.0 );
- net->fuel_pump_power[i]
- = node->getDoubleValue( "/systems/electrical/outputs/fuel-pump",
- 1.0 ) >= 1.0;
- net->prop_advance[i] = node->getDoubleValue( "propeller-pitch", 0.0 );
- net->magnetos[i] = node->getIntValue( "magnetos", 0 );
- if ( i == 0 ) {
- // cout << "Magnetos -> " << node->getIntValue( "magnetos", 0 );
- }
- net->starter_power[i]
- = node->getDoubleValue( "/systems/electrical/outputs/starter",
- 1.0 ) >= 1.0;
- if ( i == 0 ) {
- // cout << " Starter -> " << node->getIntValue( "stater", false )
- // << endl;
- }
- }
- net->num_tanks = FGNetCtrls::FG_MAX_TANKS;
- for ( i = 0; i < FGNetCtrls::FG_MAX_TANKS; ++i ) {
- if ( node->getChild("fuel-selector", i) != 0 ) {
- net->fuel_selector[i]
- = node->getChild("fuel-selector", i)->getDoubleValue();
- } else {
- net->fuel_selector[i] = false;
- }
- }
- net->num_wheels = FGNetCtrls::FG_MAX_WHEELS;
- for ( i = 0; i < FGNetCtrls::FG_MAX_WHEELS; ++i ) {
- if ( node->getChild("brakes", i) != 0 ) {
- if ( node->getChild("parking-brake")->getDoubleValue() > 0.0 ) {
- net->brake[i] = 1.0;
- } else {
- net->brake[i]
- = node->getChild("brakes", i)->getDoubleValue();
- }
- } else {
- net->brake[i] = 0.0;
- }
- }
+ HTTPClient ( const char* host, int port, const char* path ) :
+ done( false )
+ {
+ open ();
+ connect (host, port);
- node = fgGetNode("/controls/switches", true);
- net->master_bat = node->getChild("master-bat")->getBoolValue();
- net->master_alt = node->getChild("master-alt")->getBoolValue();
- net->master_avionics = node->getChild("master-avionics")->getBoolValue();
-
- net->wind_speed_kt = fgGetDouble("/environment/wind-speed-kt");
- net->wind_dir_deg = fgGetDouble("/environment/wind-from-heading-deg");
-
- // cur_fdm_state->get_ground_elev_ft() is what we want ... this
- // reports the altitude of the aircraft.
- // "/environment/ground-elevation-m" reports the ground elevation
- // of the current view point which could change substantially if
- // the user is switching views.
- net->hground = cur_fdm_state->get_ground_elev_ft() * SG_FEET_TO_METER;
- net->magvar = fgGetDouble("/environment/magnetic-variation-deg");
- net->speedup = fgGetInt("/sim/speed-up");
- net->freeze = 0;
- if ( fgGetBool("/sim/freeze/master") ) {
- net->freeze |= 0x01;
- }
- if ( fgGetBool("/sim/freeze/position") ) {
- net->freeze |= 0x02;
- }
- if ( fgGetBool("/sim/freeze/fuel") ) {
- net->freeze |= 0x04;
- }
+ char buffer[256];
+ ::snprintf (buffer, 256, "GET %s HTTP/1.0\r\n\r\n", path );
+ bufferSend(buffer, strlen(buffer) ) ;
- // convert to network byte order
- net->version = htonl(net->version);
- htond(net->aileron);
- htond(net->elevator);
- htond(net->elevator_trim);
- htond(net->rudder);
- htond(net->flaps);
- net->flaps_power = htonl(net->flaps_power);
- for ( i = 0; i < FGNetCtrls::FG_MAX_ENGINES; ++i ) {
- htond(net->throttle[i]);
- htond(net->mixture[i]);
- net->fuel_pump_power[i] = htonl(net->fuel_pump_power[i]);
- htond(net->prop_advance[i]);
- net->magnetos[i] = htonl(net->magnetos[i]);
- net->starter_power[i] = htonl(net->starter_power[i]);
- }
- net->num_engines = htonl(net->num_engines);
- for ( i = 0; i < FGNetCtrls::FG_MAX_TANKS; ++i ) {
- net->fuel_selector[i] = htonl(net->fuel_selector[i]);
+ poller.addChannel(this);
+ start.stamp();
}
- net->num_tanks = htonl(net->num_tanks);
- for ( i = 0; i < FGNetCtrls::FG_MAX_WHEELS; ++i ) {
- htond(net->brake[i]);
- }
- net->num_wheels = htonl(net->num_wheels);
- net->gear_handle = htonl(net->gear_handle);
- net->master_bat = htonl(net->master_bat);
- net->master_alt = htonl(net->master_alt);
- net->master_avionics = htonl(net->master_avionics);
- htond(net->wind_speed_kt);
- htond(net->wind_dir_deg);
- htond(net->hground);
- htond(net->magvar);
- net->speedup = htonl(net->speedup);
- net->freeze = htonl(net->freeze);
-}
+ virtual void handleBufferRead (simgear::NetBuffer& buffer)
+ {
+ const char* s = buffer.getData();
+ while (*s)
+ fputc(*s++,stdout);
-static void net2global( FGNetFDM *net ) {
- int i;
-
- // Convert to the net buffer from network format
- net->version = ntohl(net->version);
-
- htond(net->longitude);
- htond(net->latitude);
- htond(net->altitude);
- htond(net->phi);
- htond(net->theta);
- htond(net->psi);
-
- htond(net->phidot);
- htond(net->thetadot);
- htond(net->psidot);
- htond(net->vcas);
- htond(net->climb_rate);
- htond(net->v_north);
- htond(net->v_east);
- htond(net->v_down);
- htond(net->v_wind_body_north);
- htond(net->v_wind_body_east);
- htond(net->v_wind_body_down);
- htond(net->stall_warning);
-
- htond(net->A_X_pilot);
- htond(net->A_Y_pilot);
- htond(net->A_Z_pilot);
-
- net->num_engines = htonl(net->num_engines);
- for ( i = 0; i < net->num_engines; ++i ) {
- htonl(net->eng_state[i]);
- htond(net->rpm[i]);
- htond(net->fuel_flow[i]);
- htond(net->EGT[i]);
- htond(net->oil_temp[i]);
- htond(net->oil_px[i]);
+ printf("done\n");
+ buffer.remove();
+ printf("after buffer.remove()\n");
+ done = true;
}
- net->num_tanks = htonl(net->num_tanks);
- for ( i = 0; i < net->num_tanks; ++i ) {
- htond(net->fuel_quantity[i]);
+ bool isDone() const { return done; }
+ bool isDone( long usec ) const {
+ if ( start + SGTimeStamp::fromUSec(usec) < SGTimeStamp::now() ) {
+ return true;
+ } else {
+ return done;
+ }
}
-
- net->num_wheels = htonl(net->num_wheels);
- // I don't need to convert the Wow flags, since they are one byte in size
- htond(net->flap_deflection);
-
- net->cur_time = ntohl(net->cur_time);
- net->warp = ntohl(net->warp);
- htond(net->visibility);
-
- if ( net->version == FG_NET_FDM_VERSION ) {
- // cout << "pos = " << net->longitude << " " << net->latitude << endl;
- // cout << "sea level rad = " << cur_fdm_state->get_Sea_level_radius()
- // << endl;
- cur_fdm_state->_updateGeodeticPosition( net->latitude,
- net->longitude,
- net->altitude
- * SG_METER_TO_FEET );
- cur_fdm_state->_set_Euler_Angles( net->phi,
- net->theta,
- net->psi );
- cur_fdm_state->_set_Euler_Rates( net->phidot,
- net->thetadot,
- net->psidot );
- cur_fdm_state->_set_V_calibrated_kts( net->vcas );
- cur_fdm_state->_set_Climb_Rate( net->climb_rate );
- cur_fdm_state->_set_Velocities_Local( net->v_north,
- net->v_east,
- net->v_down );
- cur_fdm_state->_set_Velocities_Wind_Body( net->v_wind_body_north,
- net->v_wind_body_east,
- net->v_wind_body_down );
-
- fgSetDouble( "/sim/alarms/stall-warning", net->stall_warning );
- cur_fdm_state->_set_Accels_Pilot_Body( net->A_X_pilot,
- net->A_Y_pilot,
- net->A_Z_pilot );
-
- for ( i = 0; i < net->num_engines; ++i ) {
- SGPropertyNode *node = fgGetNode( "engines/engine", i, true );
-
- // node->setBoolValue("running", t->isRunning());
- // node->setBoolValue("cranking", t->isCranking());
-
- // cout << net->eng_state[i] << endl;
- if ( net->eng_state[i] == 0 ) {
- node->setBoolValue( "cranking", false );
- node->setBoolValue( "running", false );
- } else if ( net->eng_state[i] == 1 ) {
- node->setBoolValue( "cranking", true );
- node->setBoolValue( "running", false );
- } else if ( net->eng_state[i] == 2 ) {
- node->setBoolValue( "cranking", false );
- node->setBoolValue( "running", true );
- }
-
- node->setDoubleValue( "rpm", net->rpm[i] );
- node->setDoubleValue( "fuel-flow-gph", net->fuel_flow[i] );
- node->setDoubleValue( "egt-degf", net->EGT[i] );
- node->setDoubleValue( "oil-temperature-degf", net->oil_temp[i] );
- node->setDoubleValue( "oil-pressure-psi", net->oil_px[i] );
- }
-
- for (i = 0; i < net->num_tanks; ++i ) {
- SGPropertyNode * node
- = fgGetNode("/consumables/fuel/tank", i, true);
- node->setDoubleValue("level-gal_us", net->fuel_quantity[i] );
- }
-
- for (i = 0; i < net->num_wheels; ++i ) {
- SGPropertyNode * node
- = fgGetNode("/gear/gear", i, true);
- node->setDoubleValue("wow", net->wow[i] );
- }
-
- fgSetDouble("/surface-positions/flap-pos-norm", net->flap_deflection);
- SGPropertyNode * node = fgGetNode("/controls", true);
- fgSetDouble("/surface-positions/elevator-pos-norm",
- node->getDoubleValue( "elevator" ));
- fgSetDouble("/surface-positions/rudder-pos-norm",
- node->getDoubleValue( "rudder" ));
- fgSetDouble("/surface-positions/left-aileron-pos-norm",
- node->getDoubleValue( "aileron" ));
- fgSetDouble("/surface-positions/right-aileron-pos-norm",
- -node->getDoubleValue( "aileron" ));
-
- /* these are ignored for now ... */
- /*
- if ( net->cur_time ) {
- fgSetLong("/sim/time/cur-time-override", net->cur_time);
- }
-
- globals->set_warp( net->warp );
- last_warp = net->warp;
- */
- } else {
- SG_LOG( SG_IO, SG_ALERT, "Error: version mismatch in net2global()" );
- SG_LOG( SG_IO, SG_ALERT,
- "\tread " << net->version << " need " << FG_NET_FDM_VERSION );
- SG_LOG( SG_IO, SG_ALERT,
- "\tsomeone needs to upgrade net_fdm.hxx and recompile." );
+
+ void poll(int timeout)
+ {
+ poller.poll(timeout);
}
-}
-
+};
FGExternalNet::FGExternalNet( double dt, string host, int dop, int dip, int cp )
{
double lon = fgGetDouble( "/sim/presets/longitude-deg" );
double lat = fgGetDouble( "/sim/presets/latitude-deg" );
double alt = fgGetDouble( "/sim/presets/altitude-ft" );
- double ground = fgGetDouble( "/environment/ground-elevation-m" );
+ double ground = get_Runway_altitude_m();
double heading = fgGetDouble("/sim/presets/heading-deg");
double speed = fgGetDouble( "/sim/presets/airspeed-kt" );
// Send control positions to remote fdm
length = sizeof(ctrls);
- global2net( &ctrls );
+ FGProps2NetCtrls( &ctrls, true, true );
if ( data_client.send( (char *)(& ctrls), length, 0 ) != length ) {
SG_LOG( SG_IO, SG_DEBUG, "Error writing data." );
} else {
length = sizeof(fdm);
while ( (result = data_server.recv( (char *)(& fdm), length, 0)) >= 0 ) {
SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
- net2global( &fdm );
+ FGNetFDM2Props( &fdm );
}
}
projects / flightgear.git / blobdiff